Work on the current vision for Republic Square, the multitenant, mixed-use development underway at 13501 Katy Freeway, has been in the works since at least July 2016. Dallas-based Third Palm is working alongside Houston-based Boxer Property to redevelop 320,000 square feet of Exxon's former office space into creative art studios, office suites designed for small- to mid-sized tenants, Boxer Property's Workstyle co-working space and more, Tuller said. As of now, no parts of the campus will be demolished, but the Third Palm team is continually assessing the market and that might change, Tuller said in a statement.

Third Palm and Boxer will also preserve and lease Mosaic, a 15,000-square-foot prototype office space built in the campus by Exxon Mobil. The Mosaic space resembles Exxon's new headquarters at Springwoods Village. The company treated Mosaic like a beta-version of its new campus, Tuller said, and observed how its employees interacted with the workspace before it moved forward with its massive north Houston campus in 2015.

More ideations for Republic Square, including public event space and a beer-focused addition, are in the works. The firm is also in talks with several high-end hotel flags for a property at Republic Square, Tuller said. A decision should be made by the end of 2017, he said.

"We’ve been talking to flags all along," he said.

Visibility and accessibility from Interstate 10 and Memorial Drive also will be improved, and a surface parking lot will be added along Memorial. Third Palm plans to invest $1 billion into Republic Square over an unspecified period of time, Tuller said.

Before Boxer Property was brought on, Third Palm was working with PM Realty Group. PM Realty Group worked with Third Palm from 2013 until 2015.